AutoCodes – Ford – P1662 Ford

P1662 Ford Code - Injector Driver Module Circuit Failure

Quick Answer

The Diagnostic Trouble Code (DTC) P1662 is commonly related to the Injector Driver Module (IDM) Communication Fault. Common causes include Faulty Injector Driver Module (IDM), Faulty Powertrain Control Module (PCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1662 Ford indicates Injector Driver Module Circuit Failure.
Common causes: Common causes include Faulty Injector Driver Module (IDM), Faulty Powertrain Control Module (PCM).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 9,190

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 05, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P1662 Ford Description

The Diagnostic Trouble Code (DTC) P1662 is commonly related to the Injector Driver Module (IDM) Communication Fault. This means there is likely a communication issue between the Powertrain Control Module (PCM) and the IDM.

OBDII Code P1662 Ford - Injector Driver Module Circuit Failure - AutoCodes.com — P1662 Ford Code - Injector Driver Module Circuit Failure

What does this mean?

What are the Possible Causes of the DTC P1662 Ford?

Faulty Injector Driver Module (IDM)
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1662 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1662 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.